Dinh Cau (Dinh Cậu) is a small shrine and lighthouse on a rocky outcrop at the mouth of the Duong Dong river, in the centre of Duong Dong town. It is the island’s best-known landmark and its favourite sunset spot: in the late afternoon locals and visitors climb the steps to the shrine, sit on the rocks and the sea wall, and watch the sun go down over the Gulf of Thailand while the fishing boats come in. It scores 4.5 on Google Maps from over 3,700 reviews (October 2026).
What is Dinh Cau?
Despite the name — dinh means a communal shrine — Dinh Cau is a sea shrine built by Phu Quoc’s fishermen to ask for calm seas and good catches. According to Vietnamese sources, the main deity is the Lady of the Island, Bà Chúa Ngọc (also called Thủy Long Thánh Mẫu), with her two sons, Cậu Tài and Cậu Quý — the “Cậu” of the name. Locals also call it the Dragon King shrine. (Many English guides say it honours the Chinese sea goddess Thien Hau; Vietnamese sources do not.)
The present shrine dates from 1937 and was restored in 1997 and again in 2009. You reach it up 29 stone steps from the foot of the rock, which can be slippery after rain. At the top are the shrine, a small terrace with benches, and the lighthouse behind it, which still guides boats into the harbour; the tower itself is not open to visitors. Dinh Cau was listed as a provincial heritage site in 2012.
The festival
The Dinh Cau festival (Lễ hội Dinh Cậu) is held on the 15th and 16th days of the tenth lunar month — in 2026, around 23–24 November. It is a prayer for a good fishing season, with offerings and traditional rituals at the shrine, and folk games such as boat races, catching ducks in the sea and stilt walking. Fishermen also come to burn incense before going to sea and at Tết.
When to go
- Sunset is the time, from about 17:00. Arrive early to find a spot on the rocks; it gets crowded, especially at weekends. For other places to watch it, see sunset spots.
- Opening hours: around 7:00 to 20:30 (Vietnam Airlines’ guide); there is no entry fee.
- Dress respectfully inside the shrine: shoulders and knees covered, and quiet while people are praying.
Around Dinh Cau
- The night market is a few minutes’ walk away; see our night market guide. Many people combine the two: sunset at Dinh Cau, then dinner at the market.
- Dinh Cau beach (Bãi Dinh Cậu), next to the rock, is a local beach where families swim and play in the evening.
- The Duong Dong river mouth is packed with fishing boats; there is a walking path along the shore behind the lighthouse where locals fish.
- Dinh Bà Thủy Long Thánh Mẫu, a larger temple to the same Lady of the Island at 44 Võ Thị Sáu, is a short walk inland (4.5 from 299 reviews).
Getting there
Dinh Cau is at the end of Bach Dang Street in central Duong Dong, about 15 minutes by car from the airport. Grab and taxis can drop you at the foot of the rock; if you come by scooter, park in the lots near the night market.
For the island’s other pagodas, temples and churches, see temples and pagodas.
Ratings and review counts: Google Maps, October 2026. History and festival: Vietnamese press (see sources).
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